util.c - Compiled functions for cx_Freeze itself. Compiles to
cx_Freeze.util. Most of the functions are used only on Windows.

bases/ - The source of the base executables which are used to launch
your Python applications. Different bases serve for different types of
application on Windows (GUI, console application or service). The base
executable calls the initscript, which in turn calls the user’s code.

initscripts/ - Python scripts which set up the interpreter to run from
frozen code, then load the code from the zip file and set it running.

samples/ - Examples of using cx_Freeze with a number of common modules.